Pulley-block



(No Model.)

P.- KING.

PULLEY BLOCK. No. 286,021. Patented Oct. 2, 1.883.

UNITE FFICFW PULLEY-BLOCK.

SPECIFICATION formingpart of Letters Patent No. 286,021, dated October2, 1883. Application filed May 31, 1883. (No model.)

To all whom it may concern.-

Be it known that I, PETER KING, a citizen of the United States, residingat Springfield, in the county of Clarke and State of Ohio, have inventedcertain new and useful Improvements in Pulley-Blocks; and I do declarethe follow ing to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the acconrpanying drawings, and to the letters and fig ures of reference markedthereon, which form a part of this specification.

My invention relates to pulley-blocks.

My invention relates to that class of pulleyimprovements in blocks whichare used with a single sheave to fold awnings, and to elevate loosefibrous substancessuch as hay or straw-when applied to hay-carriers.

The object of my invention is to prevent the folds of cloth in anawning, or the hayor straw when used in a hay-carrier, from being drawninto the block by the rope passing over the sheave. To accomplish this Iconstruct the block in. a peculiar manner, witlra guard OX- tending overthe face of the sheave, on one side, from end to en fthe same. Below theaxle of the sheave ea thi'oathole, having an extended lip to give theinrunning rope a smooth bearing, and to shut off anyloose substanceswhich maybe drawn up with the pulicy-block.

Figure l is a vertical section of a pulleyblock embodying myimprovements. Fig. 2 is a view of the pulley-block entire from the openside, corresponding with the right side in Figs. land 3. Fig. 3 is aside elevation of the pulley-block with the rope applied to the same.

A is the pulley-block, and B the sheave, which is pivoted upon a pintleor axle, 7), extending through the checks of the block A, in the usualmanner, from side to side. Thegeneral configuration of the block A,viewed in side elevation, as seen in Fig. 3, is that of a flatellipsoid, with an incurvation at the lower end, on the right side,cutting away a portion of that shaped figure. The checks a of the blockare connected over the face of the sheave B, on the left side, from, thepoint e at the eye end to the extreme point 0 below the sheave, only athroat-hole, I), being left therein, as seen in the figures. The web a,which thus con. nccts the cheeks a, forms much the longest side of theblock, it being made with a lipextension, (9, to allow the throat-holeZ) to be made as low down as possible, in order to guide the inrunningrope (I as nearly straight upward as is practicable, or as near thecentral longitudinal line of the block as the sheave will allow. It thefigures that in raising a weight the roped is always run in onedirection, as indicated by the arrow in Fig. 3, the construction of theblock conforming to this mode of operating it. The eye 6 at the top ofthe block differs in no respect from that used in ordinarysuspensionblocks, and maybe changed to a hook with.- out materiallychanging theinv'ention. The

' web to forms a guard to prevent any loose fibrous substance from beingdrawn into the swallow of the block through the throatehole F).

In operating the block for the purpose of elevating the hay, straw, orother like sub stances which are mowed away in the barn or stacked inthe field, the block is suspended in the position shown in Fig. 3, therope run ning, as shown, and any portion of the straw or hay which maybe clinging to the rope when the block is used either with a hay-fork orSl11lply with a hook, and the rope (Z looped around the bundle of hay tobe lifted, will be prevented from entering the hole 6, and thence intothe swallow of the block, by that portion of the web a surrounding saidhole, and particularly by the projecting lip c, which will have atendency to divide the lock of hay which clings to the rope and burstthe interlocked straws or fibers of the same asunder and cause it todrop again to the ground, as the closing of the entire left or up-runside of the block (a, except where the rope enters I),

effectually prevents any lodgment of the hay upon the block. In using myinvention as an awning-block it is suspended with the closed side aupward. In this position its operation in preventing the folds oftheawning from be ing drawn into the swallow would be entirely preventedby the web-connection a, and the awning-folds would be carried upon orover that part of the block, as the rope extends unwill be noticed byreference to der the awning from the front of the building outward tothe front bar of the awning-frame.

I claim as my invention- I 1. A pulley-block having its cheeks connectedupon one side by a web, through which is formed a throat-hole for thepassage of the rope inward over the sheave, said throat-hole being belowthe axis of the sheave, substantially as and for the purposehereinbefore set forth.

2. A pulley-block having one of its sides closed over the face of thesheave, and provided with a hole through said closed side,

'whereby the rope is directed in a line parallel with the centrallongitudinal line of the block in running over the sheave, and hay orother like loose substance elevated by the rope is prevented fromentering the swallow of'the pulley, substantially as set forth 3. BlockA, having the web a, connecting the cheeks a on one side of the same,and extending from the eye 6 to the point 0, and provided with athroat-hole, I), having an extended lip, 6, said throat-hole leadinginto the swallow of the block, for the passage of the rope d upward overthe sheave B, substantially as and for the purpose set forth.

4. The combination, with the sheave B and its pintle b, of the block A,having its cheeks a, connected by the web a from the eye to the lowerextended end 0 on one sidewith a throat-hole, b, therein, and having theother side open, substantially as and for the purpose hereinbefore setforth.

In testimony whereof I affix my signature in presence of two witnesses.

- PETER KING.

VVitnesses-z B. O. CONVERSE, THos. STRONG.

